macspeedy
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| posted on 5/12/03 at 08:13 PM |
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lsd
I understand that the ford sierra lsd has different drive shafts at the diff end, is the other end the same? or will the standard drum bake plates and
hubs be ok??
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Hellfire
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| posted on 5/12/03 at 09:42 PM |
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AFAIK - the drive shafts on the lsd are 'lobro' type and use effectively parallel bearings. The 'tripode' type used on
none-lsd are standard taper units. Therefore, not interchangable.
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macspeedy
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| posted on 6/12/03 at 11:16 AM |
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how much would i have to change to get a lsd fitted, i have a standard sierra diff at the moment
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blueshift
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| posted on 6/12/03 at 03:09 PM |
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if you have tripode driveshafts, you'd need new driveshafts and diff. otherwise, just new diff.
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macspeedy
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| posted on 6/12/03 at 10:33 PM |
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so there is no difference at the hub end of the drive shafts? just wanting to clarify that. Thanks
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James
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| posted on 6/12/03 at 10:57 PM |
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Mac,
If you currently have a setup with rear drum brakes then everything is different! You will need diff, shafts, hubs etc.
If you have an Indy then you will need to change your uprights as they are different to fit the callipers in the right place.
If you are saying you currently have a 'normal' Sierra back end with disc brakes then it *may* be possible just to change the diff and
bolt it up to your current set of drive shafts etc. Make sure you measure the diameter of the CV joints of the two as I suspect there are variations.
(I think, maybe, possibly...  ).
HTH,
James
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greggors84
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| posted on 7/12/03 at 01:23 AM |
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You will know if you have to change, as the LSD/Rear Disks diffs have bolt on drive shafts, they bolt on at both ends instead of pushing in, so you
will easily be able to tell if u have compatible hubs and shafts.
Chris
The Magnificent 7!
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macspeedy
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| posted on 7/12/03 at 11:00 AM |
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i have drum rear brakes, it looks like quite a big job i wish i had known this earlier would have gone for disc rears
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TL
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| posted on 7/12/03 at 12:55 PM |
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I don't know if this is any use. It is a "cut & paste" part of a thread from late october under the "LOBRO / NOT
LOBRO" heading ( It is not specific to LSD, just general).
As you can see, I haven't got the hang of using the "quote" facility!
""DOES ANYONE KNOW IF THE BOLT-ON DRIVE SHAFTS CAN BE FITTED TO A DIFF WHICH WAS ORIGINALLY FITTED WITH PUSH-IN DRIVESHAFTS?
IN OTHER WORDS, ARE THE INTERNALS OF THE DIFFS IDENTICAL? FROM MEMORY, THE HAYNES MAUAL SHOWS THE BOLT-ON SHAFTS ARE RETAINED
BY A C-CLIP, BUT WILL THIS C-CLIP AREANGEMENT FIT A DIFF WHICH DIDN'T ORIGINALLY USE A C-CLIP?
CHEERS
TERRY
TL - yes, the diffs are the same internally. You just need to remove the tripod drive units and replace them with a pair of drive flanges from a
Lobro-equipped diff. I've only seen Lobro joints on cars with disc brakes but I don't know if this is always the case.
Eddy""
Cheers,
Terry
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macspeedy
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| posted on 7/12/03 at 04:40 PM |
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so instead of buying discs and the associated parts needed to overhall a lsd rear diff etc... It could be cheaper to get drive shafts made up as i
don't see any real advantage to having discs on the back on such a light car.. anyone now how much it costs to have driveshafts chopped and
welded?
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Liam
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| posted on 7/12/03 at 07:34 PM |
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The way i read the quote above, it seems all you have to do is get the drive flanges out of the LSD (just circlipped in i expect) and your existing
tripode type shafts will just slot in as they do into a normal diff.
Certainly looks like this might work from the diff cutaway diagrams in my sierra V6 haynes manual. It looks like it might be the case that the
lobro type diffs are actually the same as the tripode type diffs apart from the fact they have a flange stuck in each side.
Dunno though.
Liam
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blueshift
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| posted on 7/12/03 at 10:52 PM |
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after reading this thread and thinking, please ignore my previous comment, I think it was rubbish.
I won't comment further at the moment as I am extremely tired, brain no work
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locoboy
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| posted on 8/12/03 at 02:23 PM |
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So from this thread then i gather that is it not possible to fit a LSD to a drum braked car?
Or am i too having a head F*ck too!
ATB
Locoboy
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James
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| posted on 8/12/03 at 02:58 PM |
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quote:
Originally posted by colmaccoll
So from this thread then i gather that is it not possible to fit a LSD to a drum braked car?
Or am i too having a head F*ck too!
Well, judging by what TL has posted above it may indeed be possible.
Certainly, it's not possible to do it *without* doing what he says. Basically we need someone who's got both and is willing to pull them
apart to compare.
I have both but now I've painted and installed my 4x4 I'm not too keen to strip it apart! 
Cheers,
James
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blueshift
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| posted on 8/12/03 at 03:56 PM |
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I think TL was right. I have heard this discussed before, I forget where, sorry..
I think it works something like, you take the back off the LSD, undo the circlips on the end of the lobro driveshafts, pull them out, push your
tripode ones in and bob's your uncle.
we have a sierra LSD that we need to strip, clean and paint up. if anyone's around with some tripode shafts and wants to see if they prod in,
let me know.
hopefully someone will turn up who knows either way though 
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macspeedy
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| posted on 8/12/03 at 04:24 PM |
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thanks for all the advice guys, i am going to a ford garage tommorrow so may ask then depending on what mood they seem to be in, always asking for odd
parts they never have in stock you get some strained looks, but that is there job.. anyway maybe someone in the know from MK could help?
[Edited on 8/12/03 by macspeedy]
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locoboy
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| posted on 10/12/03 at 12:54 PM |
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anyone got conclusive evidence yet?
ATB
Locoboy
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locoboy
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| posted on 6/1/04 at 04:12 PM |
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Still no conclusive evidence? come on chaps its a good one to answer
ATB
Locoboy
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cosworth
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| posted on 7/1/04 at 05:17 PM |
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Tripode type driveshafts will definitely fit an LSD type diff unit (I have tried it today). Not sure about lobro types fitting an open diff yet but
will confirm this by the weekend
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locoboy
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| posted on 8/1/04 at 09:13 AM |
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Nice one Cosworth, all us drum brakers willl be waiting with baited breath.
[Edited on 8/1/04 by colmaccoll]
ATB
Locoboy
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JoelP
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| posted on 8/1/04 at 10:34 AM |
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in case anyones bothered, there is a v6 on ebay for £25, thats a cheap way to get the right bits (assuming it is the right bits). up in
dumfrees...:
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=2452697001&category=9844
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James
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| posted on 8/1/04 at 10:38 AM |
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Good move that man Cosworth!
Cheers,
James
[Edited on 8/1/04 by James]
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macspeedy
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| posted on 8/1/04 at 02:42 PM |
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good work
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cosworth
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| posted on 14/1/04 at 09:44 PM |
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Just tried to fit lobro quarter shafts to an open diff-they definitley work as well so you can fit either lobro or tripode type shafts to either an
open or viscous LSD type diff
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locoboy
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| posted on 15/1/04 at 10:04 AM |
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woohoo nice round donuts here we come!
Cheers Cossie.
ATB
Locoboy
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